A023252 - OEIS

A023252 as a simple table

n	a(n)
1	13
2	19
3	31
4	79
5	97
6	199
7	331
8	349
9	373
10	457
11	541
12	577
13	607
14	643
15	709
16	769
17	811
18	859
19	1021
20	1069
21	1171
22	1249
23	1321
24	1381
25	1447
26	1483
27	1693
28	1867
29	2113
30	2137
31	2239
32	2539
33	2719
34	3037
35	3061
36	3163
37	3181
38	3187
39	3313
40	3433
41	3463
42	3673
43	3727
44	3853
45	3919
46	4021
47	4639

[13,19,31,79,97,199,331,349,373,457,541,577,607, 643,709,769,811,859,1021,1069,1171,1249,1321,1381, 1447,1483,1693,1867,2113,2137,2239,2539,2719,3037, 3061,3163,3181,3187,3313,3433,3463,3673,3727,3853, 3919,4021,4639]